通过电容器介质转换为热能而损失掉的电源指提供的（）。 .全部电流。 大部电流。 少部电流。
改进IT服务管理需要进行一系列的活动，首先要做的工作是哪项（） IT部门要组织进行现状评估。 相关方共同确定服务管理的远景目标。 高层管理者提供资源并作出承诺。 作出服务改进的规划。
You are maintaining the PROD database for NetFx Corporation. You have configured controlfile autobackup in your database. At 6：00 P.M. on Monday， you issue the following command： RMAN>BACKUP DATABASE； At 8：00 A.M. on Tuesday， you are unable to start the database because all the control files are missing. You decide to restore the control files from the backup by using the RMAN> RESTORE CONTROLFILE FROM AUTOBACKUP； command. Which operation should you perform before using the RMAN> RESTORE CONTROLFILE FROM AUTOBACKUP； command？（） Start the database in the MOUNT stage.。 Back up the control file to trace.。 Set the DBID。 Issue the RECOVER DATABASE command.。
以下对市场法的理解正确的有（）。 市场法是资产评估的基本方法之一。 市场法的优点是能够反映资产目前的市场情况。 市场法的优点是评估值较能直观反映市场现实价格。 市场法的缺点是有时缺少可比较的数据。 市场法是最具说服力的评估方法之一。
Examine the following scenario: The target database instance is running. The most recent backup available for the target database was taken two days ago. Log files switches have occurred in last two days. The target database is duplicated on the same host, using the Recovery Manager (RMAN) duplicate command as follows: Which statement is true about the duplicate database in this scenario?（） It contains data till the last backup。 It contains all data from target database until the current time。 It contains all data from only the committed transactions in the target database。 It contains all data except that which is used by the transactions in the current online redo file of target database。
The Database Resource Manager is automatically enabled in the maintenance window that runs the Automated Maintenance Task. What is the reason for this？（）
